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<title>s6-linux-init: the s6-linux-init-shutdown program</title>
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<p>
<a href="index.html">s6-linux-init</a><br />
<a href="//skarnet.org/software/">Software</a><br />
<a href="//skarnet.org/">skarnet.org</a>
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<h1> The <tt>s6-linux-init-shutdown</tt> program </h1>
<p>
<tt>s6-linux-init-shutdown</tt> triggers the system shutdown procedure.
It is normally invoked as <tt>/sbin/shutdown</tt>.
</p>
<h2> Interface </h2>
<pre>
s6-linux-init-shutdown [ -h | -p | -r | -k ] [ -a ] [ -t <em>sec</em> ] [ -f | -F ] <em>time</em> [ <em>message</em> ]
s6-linux-init-shutdown -c [ <em>message</em> ]
</pre>
<ul>
<li> If the <tt>-c</tt> option is present, a pending shutdown is cancelled. </li>
<li> Else, it triggers the shutdown procedure. </li>
<li> It exits 0. The shutdown procedure happens asynchronously. </li>
</ul>
<p>
The <tt>s6-linux-init-shutdown</tt> program conforms to the LSB-3.0.0
<a href="http://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/shutdown.html">shutdown</a>
interface.
</p>
<h2> Exit codes </h2>
<ul>
<li> 0: shutdown procedure triggered. </li>
<li> 100: wrong usage, or user does not have root privileges. </li>
<li> 111: system call failed. </li>
</ul>
<h2> Notes </h2>
<ul>
<li> The <tt>s6-linux-init-shutdown</tt>
binary is not meant to be called directly by administrators. Instead, after a
<a href="s6-linux-init-maker.html">s6-linux-init-maker</a> invocation,
the <tt>bin/</tt> subdirectory of the target will contain a <tt>shutdown</tt>
symlink to <tt>s6-linux-init-shutdown</tt>. The <tt>bin/</tt> subdirectory
should be copied by the administrator into <tt>/sbin</tt> for full
interface compatibility with sysvinit. </li>
</ul>
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